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<DIV><FONT face=Arial size=2>Nat, the cores must be as accurate as it gets.
Otherwise, there is not much room to fix it. Do you cut your own? I don't use
vac bagging (too much troubles). I have a press. Also, I don't use the white
shacks to press the wing in. Instead, I cut another set of wings from Formular
600 pink foam and then using these shacks for actual pressing. I know, sounds
like a lot of work but the result is unsurpassed (light and precise wings).
ed</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=natpenton@centurytel.net href="mailto:natpenton@centurytel.net">Nat
Penton</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, February 26, 2006 4:05
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Obechi</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Ed</FONT></DIV>
<DIV><FONT face=Arial size=2>What problems would I have vac bagging the .022
obechi ? I normally use a high ( 2.5) taper ratio and not sure if
the quality of the core will be
adequate. Thanks Nat
</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=edsko@xmission.com href="mailto:edsko@xmission.com">Ed Skorepa</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, February 26, 2006 4:26
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Obechi</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Nat,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I used to make Obechi sheeted sailplane wing
for Slegers International back in the early nineties, so I can say I have a
fair amount of experience. The stuff I was using had density of 18 lb/cu ft.
The thickness was just 0.022", so it was like sheeting the wing with 1/16,
6lb Balsa which is btw hard to get today. The wings had hard surface
(compare to balsa) and were at least twice as strong. Before making any
finish, I filed the grain with the lite spackle (more on this later if
you're interested).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Back then, I was buying Obechi from Barry
Kennedy at <A
href="http://www.kennedycomposites.com">www.kennedycomposites.com</A>
You can also try Ed Whyte at WHYTE WINGS, 616-698-8668. There is also outfit
in Washington state which sells the Obechi, but you have to buy bulk,
something like $3k minimum.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>The Obechi is a great stuff
and inexpensive, 14" wide, 11' long sheet about $12. However, it
requires different techniques. Because of thickness, there is no room
for mistakes. ed</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=natpenton@centurytel.net
href="mailto:natpenton@centurytel.net">Nat Penton</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, February 25, 2006
3:54 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion]
Obechi</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>I can't find any info on the density,
or where to buy obechi wing skins.</FONT><FONT face=Arial
size=2>Also, how difficult is it to fill if you glass amd paint
?
Nat</FONT></DIV>
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